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Jyutping mut6 loeng4 sam1
Pinyin méi liáng xīn

Definitions (Wiktionary)
  1. verb
    to have no conscience
  2. adj
    heartless

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Jyutping mut6 loeng4 sam1
Pinyin méi liāng2xin

Definitions (CC-CANTO)
  1. to have no conscience; heartless [written]
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    他对一个生病的男人说这种事真是没良心。
    他對一個生病的男人説這種事真是沒良心。
    tā duì yí gè shēng bìng de nán rén shuō zhè zhǒng shì zhēn shi méi liáng xīn 。
    • It was heartless of him to say such a thing to the sick man.
Examples (粵典–words.hk)
  1. Cantonese
    埋没良心
    埋沒良心
    maai4 mut6 loeng4 sam1
    • to bury one's conscience
Examples (Wiktionary)
  1. Mandarin
    没良心
    沒良心
    méi liáng xīn
    • to have no conscience